Sylwood Acoustic Underlay for Engineered Floors

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Sylwood is an innovative, high performance product ideal for acoustically upgrading existing buildings during renovation or new installation of wooden floors. Sylwood is a high density, low thickness recycled rubber mat made of SBR and cork granules, that dampens and absorbs noise transmission from footfall and other types of impact noise.

It is laid directly onto existing concrete screeds ready to receive the new wooden or laminate floor.

Sylwood has an impact sound insulation improvement value of 20dB when it and the wooden floor are loose laid and an improvement value of 17dB when it and the wooden floor are glued using a suitable adhesive.

Features

  • Minimal thickness
  • For use under all types of wooden floor and laminates
  • Easy installation
  • Eco-friendly – manufactured from recycled materials

Ln,w (Impact Sound Pressure Level) – 57dB
This figure measures how much sound reaches the receiving room. The lower the figure the better.

Rw ( Airborne Sound Transmission Loss) – 53dB
This figure refers to the ability of the floor to provide sound insulation. The higher the number, the better the sound insulation.

CompositionThickness
1Plasterboard x 225mm
2100mm Mineral wool 60kg/m3100mm
3Air Gap215mm
4Joists with Plywood18mm
5Sylwood 55mm
6Laminate / Wooden Floor Finish22mm

Ln,w (Impact Sound Pressure Level) – 61dB
This figure measures how much sound reaches the receiving room. The lower the figure the better.

Rw ( Airborne Sound Transmission Loss) – 52dB
This figure refers to the ability of the floor to provide sound insulation. The higher the number, the better the sound insulation.

Description
Acoustic insulation supplied in rolls and produced using granules of SBR (Styrene Butadiene Rubber) and Cork compacted using a polyurethane adhesive in a hot process. The colour of the product is black and brown and is supplied in rolls 20m long, 1.00m wide. Density is 700 kg/m2.

Application
Acoustic Insulation for reduction of impact sound/noise beneath wooden or laminate flooring

DescriptionStandardSylwood 3Sylwood 5
Thicknessmm35
DensityKg/m3700700
Impact Sound Improvement ( ΔLw)dB ISO 140-820dB (*)20dB (*)
Impact Sound Improvement ( ΔLw)dB ISO 140-817dB (*)17dB (*)
Thermal Conductivity Coefficient (λ)W/m°KEN 126670.120.12
Fire ResistanceDIN 4102B2B2

* 140mm Concrete floor, levelled screed 50mm, Sylwood loose laid on the screed, 15mm wooden flooring floated on the Sylwood mat

** 140mm Concrete floor, levelled screed 50mm, Sylwood glued to the screed, 15mm wooden flooring glued to the Sylwood mat

Sylwood impact sound insulation can be either glued or loose laid on top of the screed. It is disconnected from the perimeter walls with a self adhesive flanking strip. The wooden floor or laminate is then laid directly on the sound insulation mat.

With Adhesive

Without Adhesive